/* 头部 */
header {
  height: 46px;
}

header .menu,
header .login {
  width: 46px;
  height: 46px;
  line-height: 46px;
}

header input {
  width: 90%;
  line-height: 30px;
  text-indent: 20px;
  border: none;
  border-radius: 15px;
}

header input::placeholder {
  font-size: 14px;
}
